Revision e3e87df4

b/cutils.c
376 376 
    return fd;
377 377 
}
378 378 

  		





  379
  
  
    
static ssize_t do_sendv_recvv(int sockfd, struct iovec *iov,


  		





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                          size_t offset, size_t bytes,


  		





  381
  
  
    
                          int do_sendv)


  		





  
  379
  
    
ssize_t iov_send_recv(int sockfd, struct iovec *iov,


  		





  
  380
  
    
                      size_t offset, size_t bytes,


  		





  
  381
  
    
                      bool do_sendv)


  		





  382
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{


  		





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    int iovlen;


  		





  384
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    ssize_t ret;


  		





  ......




  458
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    last_iov->iov_len += diff;


  		





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    return ret;


  		





  460
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}


  		





  461
  
  
    

  		





  462
  
  
    
ssize_t iov_recv(int sockfd, struct iovec *iov, size_t offset, size_t bytes)


  		





  463
  
  
    
{


  		





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    return do_sendv_recvv(sockfd, iov, offset, bytes, 0);


  		





  465
  
  
    
}


  		





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ssize_t iov_send(int sockfd, struct iovec *iov, size_t offset, size_t bytes)


  		





  468
  
  
    
{


  		





  469
  
  
    
    return do_sendv_recvv(sockfd, iov, offset, bytes, 1);


  		





  470
  
  
    
}


  		





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      b/iov.h
    
  






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 * `offset' bytes in the beginning of iovec buffer are skipped and


  		





  61
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 * next `bytes' bytes are used, which must be within data of iovec.


  		





  62
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 *


  		





  63
  
  
    
 *   r = iov_send(sockfd, iov, offset, bytes);


  		





  
  63
  
    
 *   r = iov_send_recv(sockfd, iov, offset, bytes, true);


  		





  64
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 *


  		





  65
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 * is logically equivalent to


  		





  66
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 *


  		





  ......




  69
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 *   r = send(sockfd, buf, bytes, 0);


  		





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 *   free(buf);


  		





  71
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 */


  		





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ssize_t iov_recv(int sockfd, struct iovec *iov, size_t offset, size_t bytes);


  		





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ssize_t iov_send(int sockfd, struct iovec *iov, size_t offset, size_t bytes);


  		





  
  72
  
    
ssize_t iov_send_recv(int sockfd, struct iovec *iov,


  		





  
  73
  
    
                      size_t offset, size_t bytes, bool do_send);


  		





  
  74
  
    
#define iov_recv(sockfd, iov, offset, bytes) \


  		





  
  75
  
    
  iov_send_recv(sockfd, iov, offset, bytes, false)


  		





  
  76
  
    
#define iov_send(sockfd, iov, offset, bytes) \


  		





  
  77
  
    
  iov_send_recv(sockfd, iov, offset, bytes, true)


  		





  74
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  75
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/**


  		





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 * Produce a text hexdump of iovec `iov' with `iov_cnt' number of elements


  		












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